EP 4158085 A1 20230405 - CRYSTALLIZATION OF ALLULOSE UNDER REDUCED PRESSURE
Title (en)
CRYSTALLIZATION OF ALLULOSE UNDER REDUCED PRESSURE
Title (de)
KRISTALLISATION VON ALLULOSE UNTER VERMINDERTEM DRUCK
Title (fr)
CRISTALLISATION D'ALLULOSE SOUS PRESSION RÉDUITE
Publication
Application
Priority
- EP 20176791 A 20200527
- EP 20206593 A 20201110
- EP 2021064055 W 20210526
Abstract (en)
[origin: WO2021239813A1] The invention relates to a process for the preparation of a solid allulose material comprising crystalline allulose, the method comprising the steps of (a) providing in an evaporating crystallizer an aqueous mother liquor containing dissolved allulose; (b) maintaining, preferably until the end of crystallization, the aqueous mother liquor within the evaporating crystallizer at a crystallization temperature within the range of from 20 to 80°C; (c) maintaining, preferably until the end of crystallization, the vapor phase above the aqueous mother liquor within the evaporating crystallizer at a crystallization pressure within the range of from 40 to 500 mbar; and (d) inducing crystallization of allulose from the aqueous mother liquor at the crystallization temperature and at the crystallization pressure in a supersaturated state thereby obtaining the solid allulose material as a precipitate and a supernatant.
IPC 8 full level
C30B 7/04 (2006.01); C07H 3/02 (2006.01); C30B 29/54 (2006.01)
CPC (source: EP KR US)
C07H 1/00 (2013.01 - EP); C07H 1/06 (2013.01 - KR US); C07H 3/02 (2013.01 - EP KR US); C30B 7/04 (2013.01 - EP); C30B 29/54 (2013.01 - EP); C07B 2200/13 (2013.01 - KR); C30B 7/04 (2013.01 - US)
Designated contracting state (EPC)
AL AT BE BG CH CY CZ DE DK EE ES FI FR GB GR HR HU IE IS IT LI LT LU LV MC MK MT NL NO PL PT RO RS SE SI SK SM TR
Designated extension state (EPC)
BA ME
Designated validation state (EPC)
KH MA MD TN
DOCDB simple family (publication)
WO 2021239813 A1 20211202; EP 4158085 A1 20230405; KR 20230016665 A 20230202; MX 2022014802 A 20230116; US 2023159579 A1 20230525
DOCDB simple family (application)
EP 2021064055 W 20210526; EP 21727487 A 20210526; KR 20227045518 A 20210526; MX 2022014802 A 20210526; US 202117917888 A 20210526